<template>
  <div class="cart">
    <h4>全部商品</h4>
    <div class="cart-main">
      <div class="cart-th">
        <div class="cart-th1">全部</div>
        <div class="cart-th2">商品</div>
        <div class="cart-th3">单价（元）</div>
        <div class="cart-th4">数量</div>
        <div class="cart-th5">小计（元）</div>
        <div class="cart-th6">操作</div>
      </div>
      <div class="cart-body">
        <ul
          class="cart-list"
          v-for="cartInfo in cartInfoList"
          :key="cartInfo.id"
        >
          <li class="cart-list-con1">
            <input
              type="checkbox"
              name="chk_list"
              :checked="cartInfo.isChecked === 1"
              @change="
                changeComState(cartInfo.skuId, cartInfo.isChecked === 1 ? 0 : 1)
              "
            />
          </li>
          <li class="cart-list-con2">
            <img :src="cartInfo.imgUrl" />
            <div class="item-msg">
              {{ cartInfo.skuName }}
            </div>
          </li>
          <li class="cart-list-con3">
            <div class="item-txt">语音升级款</div>
          </li>
          <li class="cart-list-con4">
            <span class="price">{{ cartInfo.skuPrice }}</span>
          </li>
          <li class="cart-list-con5">
            <a
              href="javascript:void(0)"
              class="mins"
              @click="changeNum(cartInfo.skuId, cartInfo.skuNum > 1 ? -1 : 0)"
              >-</a
            >
            <input
              autocomplete="off"
              type="text"
              :value="cartInfo.skuNum"
              minnum="1"
              class="itxt"
              @change="
                changeNum(
                  cartInfo.skuId,
                  $event.target.value > 0
                    ? $event.target.value - cartInfo.skuNum
                    : 0
                )
              "
            />
            <a
              href="javascript:void(0)"
              class="plus"
              @click="changeNum(cartInfo.skuId, 1)"
              >+</a
            >
          </li>
          <li class="cart-list-con6">
            <span class="sum">{{ cartInfo.skuPrice * cartInfo.skuNum }}</span>
          </li>
          <li class="cart-list-con7">
            <a class="sindelet" @click="deleteCom(cartInfo.skuId)">删除</a>
            <br />
            <a href="#none">移到收藏</a>
          </li>
        </ul>
      </div>
    </div>
    <div class="cart-tool">
      <div class="select-all">
        <input class="chooseAll" type="checkbox" v-model="allSel" />
        <span>全选</span>
      </div>
      <div class="option">
        <a @click="deleteAllSelect">删除选中的商品</a>
        <a href="#none">移到我的关注</a>
        <a href="#none">清除下柜商品</a>
      </div>
      <div class="money-box">
        <div class="chosed">
          已选择 <span>{{ totalNum }}</span
          >件商品
        </div>
        <div class="sumprice">
          <em>总价（不含运费） ：</em>
          <i class="summoney">{{ totalPrice }}</i>
        </div>
        <div class="sumbtn">
          <a class="sum-btn" @click="$router.push('/trade')">结算</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import {
  requestGetShopCarList,
  requestSetShopCarList,
  requestChangeComState,
  requestChangeAllComState,
  requestDeleteCom,
  requestAllSelectCom,
} from "@/api";
export default {
  name: "ShopCart",
  data() {
    return {
      ShopCarList: [],
    };
  },
  computed: {
    // 购物列表的值
    cartInfoList() {
      return this.ShopCarList[0]?.cartInfoList || [];
    },
    // 总件数
    totalNum() {
      return this.cartInfoList.reduce(
        (prev, item) => (item.isChecked === 1 ? item.skuNum : 0) + prev,
        0
      );
    },
    // 总价格
    totalPrice() {
      return this.cartInfoList.reduce(
        (prev, item) =>
          (item.isChecked === 1 ? item.skuNum * item.skuPrice : 0) + prev,
        0
      );
    },
    // 是否全部被勾选
    allSel: {
      async set(isChecked) {
        const skuIdList = this.cartInfoList.reduce((p, item) => {
          p.push(item.skuId);
          return p;
        }, []);
        await requestChangeAllComState(isChecked ? 1 : 0, skuIdList);
        this.getShopCarList();
      },
      get() {
        return this.cartInfoList.every((item) => item.isChecked === 1);
      },
    },
  },
  methods: {
    // api请求
    async getShopCarList() {
      const res = await requestGetShopCarList();
      this.ShopCarList = res;
    },
    // 修改物品数量
    async changeNum(skuId, skuNum) {
      await requestSetShopCarList({ skuId, skuNum });
      this.getShopCarList();
    },
    // 切换单个商品选中状态
    async changeComState(skuId, isChecked) {
      await requestChangeComState({ skuId, isChecked });
      this.getShopCarList();
    },
    // 删除单个商品
    async deleteCom(skuId) {
      await requestDeleteCom(skuId);
      this.getShopCarList();
    },
    // 删除所有选中的购物车
    async deleteAllSelect() {
      const skuIdList = this.cartInfoList.reduce((p, item) => {
        item.isChecked === 1 ? p.push(item.skuId) : p;
        return p;
      }, []);
      await requestAllSelectCom(skuIdList);
      this.getShopCarList();
    },
  },
  mounted() {
    this.getShopCarList();
  },
};
</script>

<style lang="less" scoped>
.cart {
  width: 1200px;
  margin: 0 auto;

  h4 {
    margin: 9px 0;
    font-size: 14px;
    line-height: 21px;
  }

  .cart-main {
    .cart-th {
      background: #f5f5f5;
      border: 1px solid #ddd;
      padding: 10px;
      overflow: hidden;

      & > div {
        float: left;
      }

      .cart-th1 {
        width: 25%;

        input {
          vertical-align: middle;
        }

        span {
          vertical-align: middle;
        }
      }

      .cart-th2 {
        width: 25%;
      }

      .cart-th3,
      .cart-th4,
      .cart-th5,
      .cart-th6 {
        width: 12.5%;
      }
    }

    .cart-body {
      margin: 15px 0;
      border: 1px solid #ddd;

      .cart-list {
        padding: 10px;
        border-bottom: 1px solid #ddd;
        overflow: hidden;

        & > li {
          float: left;
        }

        .cart-list-con1 {
          width: 4.1667%;
        }

        .cart-list-con2 {
          width: 25%;

          img {
            width: 82px;
            height: 82px;
            float: left;
          }

          .item-msg {
            float: left;
            width: 150px;
            margin: 0 10px;
            line-height: 18px;
          }
        }

        .cart-list-con3 {
          width: 20.8333%;

          .item-txt {
            text-align: center;
          }
        }

        .cart-list-con4 {
          width: 12.5%;
        }

        .cart-list-con5 {
          width: 12.5%;

          .mins {
            border: 1px solid #ddd;
            border-right: 0;
            float: left;
            color: #666;
            width: 6px;
            text-align: center;
            padding: 8px;
          }

          input {
            border: 1px solid #ddd;
            width: 40px;
            height: 33px;
            float: left;
            text-align: center;
            font-size: 14px;
          }

          .plus {
            border: 1px solid #ddd;
            border-left: 0;
            float: left;
            color: #666;
            width: 6px;
            text-align: center;
            padding: 8px;
          }
        }

        .cart-list-con6 {
          width: 12.5%;

          .sum {
            font-size: 16px;
          }
        }

        .cart-list-con7 {
          width: 12.5%;

          a {
            color: #666;
          }
        }
      }
    }
  }

  .cart-tool {
    overflow: hidden;
    border: 1px solid #ddd;

    .select-all {
      padding: 10px;
      overflow: hidden;
      float: left;

      span {
        vertical-align: middle;
      }

      input {
        vertical-align: middle;
      }
    }

    .option {
      padding: 10px;
      overflow: hidden;
      float: left;

      a {
        float: left;
        padding: 0 10px;
        color: #666;
      }
    }

    .money-box {
      float: right;

      .chosed {
        line-height: 26px;
        float: left;
        padding: 0 10px;
      }

      .sumprice {
        width: 200px;
        line-height: 22px;
        float: left;
        padding: 0 10px;

        .summoney {
          color: #c81623;
          font-size: 16px;
        }
      }

      .sumbtn {
        float: right;

        a {
          display: block;
          position: relative;
          width: 96px;
          height: 52px;
          line-height: 52px;
          color: #fff;
          text-align: center;
          font-size: 18px;
          font-family: "Microsoft YaHei";
          background: #e1251b;
          overflow: hidden;
        }
      }
    }
  }
}
</style>